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Finding the Fourth Proportional to 35,868.60, 53,802.90 and 13,682.70

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Solution

The fourth proportional to 35,868.60, 53,802.90 and 13,682.70 is: 20,524.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,868.60 : 53,802.90 = 13,682.70 : x
  2. Step 2: Convert to fraction form
    35,868.60/53,802.90 = 13,682.70/x
  3. Step 3: Cross multiply
    35,868.60x = 53,802.90 × 13,682.70
  4. Step 4: Simplify right side
    35,868.60x = 736,168,939.83
  5. Step 5: Solve for x
    x = 736,168,939.83/35,868.60
  6. Step 6: Final answer
    x = 20,524.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.